#2C81BE
Closest named color: Steel Blue (#4682B4). oklch(58.2% 0.123 244.3), rgb(44, 129, 190).
Aa
Black text reads best on this color (4.99:1).
About this color
#2C81BE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.123 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Blue (#4682B4), ΔE 0.025 away. Black text reads best on it, at 4.99:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Steel Blue (#4682B4) |
| Black text | 4.99:1 |
| White text | 4.20:1 |
Values
| HEX | #2C81BE |
| RGB | rgb(44, 129, 190) |
| HSL | hsl(205, 62%, 46%) |
| OKLCH | oklch(58.2% 0.123 244.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #2C81BE | 4.20:1 | AA large text | Lc -74.2 | Content text, not long reading |
| Black text on #2C81BE | 4.99:1 | AA | Lc 35.4 | Non-text elements, placeholder text |
| #2C81BE text on white | 4.20:1 | AA large text | Lc 68.7 | Content text, not long reading |
| #2C81BE text on black | 4.99:1 | AA | Lc -33.0 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200
#C9DCEC
oklch(88.5% 0.03 243.4)
-
Step 300
300
#A3C5E2
oklch(80.8% 0.055 244.3)
-
Step 400
400
#70A7D4
oklch(70.8% 0.088 244.2)
-
Step 500
500
#4690C9
oklch(63.1% 0.113 244.3)
-
Step 600
600 (this color)
#2C81BE
oklch(58.2% 0.123 244.3)
-
Step 700
700
#12669C
oklch(49.1% 0.114 243.9)
-
Step 800
800
#14537F
oklch(42.7% 0.095 244.6)
-
Step 900
900
#194566
oklch(37.7% 0.074 244.5)
-
Step 950
950
#10293C
oklch(27.1% 0.047 243.8)
#2C81BE with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #6583C1 | 0.054 |
| Deuteranopia (no green cones) | #5075BD | 0.041 |
| Tritanopia (no blue cones) | #009097 | 0.086 |
| Achromatopsia (no color) | #7B7B7B | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C81BE
#2C81BE
oklch(58.2% 0.123 244.3)
- #AC6917
#AC6917
oklch(58.2% 0.123 64.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #2C81BE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Blue #4682B4 ΔE 0.025
- Water Blue #0E87CC ΔE 0.025
- Windows Blue #3778BF ΔE 0.026
- Cool Blue #4984B8 ΔE 0.027
- Nice Blue #107AB0 ΔE 0.032
- Blue NCS #118AB2 ΔE 0.037
- Off Blue #5684AE ΔE 0.044
- Flat Blue #3C73A8 ΔE 0.046
Use #2C81BE in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.